Pump



Nov. 23, 1937. w, L.. CHURCH PUMP En., ult,

Filed Aug. 3,/ 1934 Patented Nov. 23, 1937 UNITED STATI-1s PATENT OFFICE 3 Claims.

This invention relates to a pump.

An object of the invention is to provide a deep well pump having a working barrel with a standing valve for controlling the inlet of fluid into said barrel and a reciprocable traveling valve having a traveling barrel in telescoping relation with the standing barrel, said standing and traveling barrels being provided with means for forming a substantially fluid tight seal between.

1.0 Another object of the invention is to provide,

in a piunp, a working barrel and a traveling barrel in telescopic relation, at least one of the contacting faces .of said telescoping parts being provided with pockets to relieve the lubricant between said parts of gritty substances as well as to oier interferences to the passage of uid through between said telescoping parts whereby a iiuid packed pump will be provided.

A still further object of the invention is to ifo provide a pump having a working barrel adapted to be anchored to a seat in the well tubing and a traveling valve reciprocable in the tubing with interconnecting means between the traveling valve and working barrel whereby vthe working barrel may be suspended from the ,traveling valve, while the pump is being lowered into place and withdrawn, said interconnecting means in.- cluding also a jar through which the working barrel may be driven into its seat, in locating ,the

8O pump in place or released from its seat when it is desired to withdraw the pump, said interconnecting means being capable of being disconnected in case the working barrel becomes stuck in the well whereby the traveling valve and traveling barrel and said interconnecting means may be detached from the working barrel and withdrawn.

vWith the above and other objects in view, `the invention has particular relation to certain novel features of construction, operation and arrangement of parts, an example of which is given in this specication and illustrated in the accompanying drawing wherein:

Figure l shows a side elevation partly in section of the upper end of the pump.

Figure 2 shows a side elevation partly in section of the lower end thereof.

Figure 3 shows a cross sectional view taken on the line 3-3 of Figure 1.

5.0v Figure 4 shows a cross sectional view taken on the line 4-4 of Figure 1.

Figure 5 shows a cross sectional View taken on the line5- 5 of Figure 2, and

Figure 6 shows fragmentary longitudinal sectional view, showing the interconnecting parts (Cl. 10B-181) between the working barrel and traveling valve.

In vthe dra ing the numeral I designates a pump tubing vwhich extends to the ground surface and which has a special coupling 2 provided with an inside downwardly tapering seat 3. A suit- 5 able liner or screen or perforated pipe 4, is attached to, and extends downwardly beneath, the coupling 2.

The numeral E designates a tubular working barrel secured to the lower end of which there is 10 a tubular valve cage I having within it the annular valve seat 'l which is controlled by the upwardly opening valve 8 within said cage. The upward movement of the valve is limited by the transverse stop 9. Attached to the lower end of 1,5 the cage there is an anchor I0 whose lower end tapers downwardly and is shaped to t into the seat 3. A suitable gas anchor Il is attached to the lower end of the anchor IU and extends the required distance down into the liner 4. 20

Screwed into the upper end of the working barrel there is a nut I2. The connection between said nut and working barrel is formed with coarse threads. The nut and the upper end of said barrel are yformed with interengaging shoulders 25 I3 which interlock when the nut is screwed home to prevent the threads from becoming screwed too tightly together so that said nut may be readily released. The nut I2 has a central axial bearing I4 and vertical side grooves I5, I5 which merge 30 into said bearing.

There is atraveling valve cage I6 to the upper end of which the sucker rod I'I is connected. This cage is screwed onto the upper end of the traveling valve body It. Clamped between said 35 cage I6 V and body i8 there vis an annular valve seat I9 which is controlled by the upwardly opening ball valve 20. Attached to the lower end of the body I8 and telescoping closely over the working barrel lthere is a traveling barrel 2|. The 40 valve body I8 has the upwardly converging passageways 22 leading from within the traveling barrel and arranged to conduct the pumped fluid up through the valve seat I9.

A rod 23 is attached, at its upper end, to the 45 lower end of the valve body I8 and this rod works through a bearing I4 and is provided with the headv24 at its lower end. Above the head said rod is provided with the `oppositely arranged splines `25, 25. 50

The pump may be assembled as shown in Figures l and 2 and lowered .into rthe tubing I. While v,being .so lowered the nut I2 will hang ,on the head 24 as shown in Figure 6. When the anchor I0 is seated in the seat 3 the traveling 55 valve may be lowered until the body I8 rests on the nut I2 and the traveling valve may then be elevated and dropped successively and the successive impacts against the nut I2 will drive the anchor I 0 firmly into its seat. The traveling valve may then be reciprocated in the usual way to pump the liquid from the well.

A part of the pumped liquid will iind its way up between the working barrel and traveling barrel and the liquid will form a lubricant between them. provided with external annular grooves 25 therearound forming annular pockets and the grit in the liquid will rind its way into these pockets and will not so quickly cut away the reciprocating parts.

It will be noted that these grooves each have an abrupt face and a sloping face. The abrupt faces of some of the grooves face in the opposite direction from that of the abrupt faces of the other grooves and in like manner the sloping faces of the grooves face in opposite directions. When the traveling barrel moves in either direction, the abrupt faces facing in the opposite direction will oifer an interference to the lubricating liquid between said barrels so as to form a iluid packing to prevent leakage between the barrels during the operation of the pump.

When it is desired to pull the pump from the well, the vtraveling valve may be elevated by means of the sucker rod until the head 24 engages the nut I2 and by an upward pull the standing valve may be unseat-ed from the seat 3 and removed, the pump being lifted from the well as a unit. It may happen that the anchor I0 will become so tightly stuck in the seat 3 that it cannot be removed by a direct pull. In such case the traveling valve may be lowered to carry the upper ends of the splines 25 beneath the lower end of the nut I2 andthe sucker rod may be turned so as to carry said splines out of alignment with the grooves I 5 so that they will engage the lower end of the nut I2. may then be placed under tension and turned until the splines align with the grooves I5 whereupon the tension of the sucker rod will cause the head 24 to suddenly strike the lower end of the nut I2 and the impact will unseat the anchor I0 rrom the seat 3. This process may be repeated, if necessary, until the anchor is jarred loose from the seat 3 and the pump may then be withdrawn. If the standing barrel cannot be detached from the coupling 2 by the process above explained, the sucker rod I'I may be turned to the left with the splines 25 in the grooves I5 and the nut I2 unscrewed from the working barrel and the traveling valve, the traveling barrel, the rod 23 and the nut I2 may then be withdrawn and a suitable iishing tool or other suitable equipment may then be lowered into the Well and the working barrel may be dislodged and removed.

Ther drawing and description disclose what is now considered to be a preferred form of the invention by way of illustration only while the broad principle of the invention will be defined by the appended claims.

What I claim is:

1. In a pump, a working barrel, means for anchoring the barrel in a pump tubing, an upwardly opening standing valve controlling the ow of liquid through said barrel, a traveling barrel telescoping over the Working barrel and in close frictional contact therewith, a nut threaded into As shown the working barrel isv The sucker rod' the upper end of the working barrel and having an axial bearing and a vertical side groove which merges into said bearing, a traveling valve on the traveling barrel, a sucker rod connected to the traveling barrel for reciprocating the same, a valve body connected to the upper end of the traveling barrel, said body also forming impact means operable against said nut upon downward movement of the sucker rod to drive the working barrel downwardly, a rod attached to the body and working through said bearing, a head on the lower end of said rod, a spline on the rod adjacent said head, said spline being engageable against the lower end of the nut when the rod is in one position, and being movable through said groove when the rod is in another position, said head and nut constituting impact means, upon upward movement of the rod, for driving the working barrel upwardly uponsuch upward movement.

2. In a pump, a working barrel, means for anchoring the barrel in a pump tubing, an upwardly opening standing valve in the barrel, a traveling barrel telescoping over the working barrel and in close frictional contact therewith, a nut threaded into the upper end of the working barrel and having an axial bearing and a vertical side groove which merges into said bearing, a traveling valve on the traveling barrel, a sucker rod connected to the traveling barrel for reciprocating the same, a valve body connected to the upper end of the traveling barrel, said body also forming impact means operable against said nut upon downward movement of the sucker rod to drive the working barrel downwardly, a rod attached to the body and working through said bearing, a head on the lower end of said rod, a spline on the rod adjacent said head, said spline being en- Y gageable against Vthe lower end of the nut when the rod is in one position, and being movable through said groove when the rod is in another position, said head and nut constituting impact means upon upward movement of the rod for driving the working barrel upwardly upon such upward movement, said nut and working barrel having interengaging shoulders to limit-the intermeshing of their interconnecting threads.

3. YIn. a pump, a working barrel, an upwardly opening standing valve controlling flow of liquid through said barrel, a traveling barrel telescoping with the working barrel Vand in closefrictional Contact therewith, an impact member on the working barrel and having a vertical bearing and a vertical side groove which merges into the bearing, a traveling valve on the traveling barrel, a sucker rod connected to the traveling barrel for reciprocating the same, a body connected to the traveling barrel and also forming impact means operable against the impact means on the working barrel upon downward movement of the sucker rod to drive the working barrel down-v WALTER L. CHURCH. 

